@charset "UTF-8";

/* 这部分时中间部分的样式 */
.middle {
    position: absolute;
    top:40%;
    margin-top: 50px;
    right: 150px;
    width: 500px;
}
/* slogan 的样式 */
.mid-top {
    width: 450px;
    float: right;
    margin-bottom: 50px;
}
/* 下载按钮样式 */
.mid-bottom {
    float: right;
    letter-spacing:-4px;
    font-size: 0;
    position: absolute;
    top:130px;
    right: 0;
}
.store {
    display: inline-block;
    background-color: transparent;
    border-radius: 8px;
    margin-left: 10px;
    width: 142px;
    height: 51px;
    border:1px solid #000;
    box-shadow: 1px 1px 7px 2px rgba(0,0,0,.54);
    background-repeat: no-repeat;
    background-position: center;
    background-size: cover;
}
.iso {
    background-image: url("picture/appstore_548e83a.png");
    background-repeat: no-repeat;
    background-position: center;
    background-size: cover;
    border-radius: 8px;
    display: block;
    width: 100%;
    height: 100%;
    opacity: 1;
}
.android {
    background-image: url("picture/android_d461475.png");
    background-repeat: no-repeat;
    background-position: center;
    background-size: cover;
    border-radius: 8px;
    display: block;
    width: 100%;
    height: 100%;
    opacity: 1;
}
.QRcode {
    position: relative;
    width: 50px;
    height: 50px;
    float: right;
    background-image: url("picture/download_6c60bcd.png");
}
.QRcode:hover {
    background-image: url("picture/QRcode_c129445.png");
    position: absolute;
    width: 223px;
    height: 223px;
    right: 0;
    top: 0;
}